Yield performances of Asiatic pennyworth accessions evaluated in multi environment trials in West Java']Java, Indonesia

Yield and asiaticoside contents may be influenced by genotype and environmental condition. Approaches to improve the herbal production with desired asiaticoside contents have been done by selecting potential accessions and grown at several agro ecological locations. The objectives of the study were to evaluate herbal yield and contents of asiaticoside stability of five accessions in six different locations, in 2008 and 2009 using Eberhart and Russel stability analyses. Genotype and locations were significant, but genotype-by-location (GxL) interactions were not significant for yield, whereas for asiaticoside contents (GxL) interactions were significant. Among the six locations the highest yield was obtained from Manoko > Sukamulya > Gunung Putri > Cibadak > Cibinong > Cimanggu. Among the genotypes used in this study, CASI 001, was stable for dry yield and CASI 007 was found to be stable for asiaticoside content over the environments. This information should help in selecting genotype and location for production of asiatic pennyworth.